*{margin: 0;padding: 0;}
.header{
    width: 1200px;
    height: 100px;
    margin: 0 auto;
}
.logo{
    height: 100px;
    width: 180px;
    padding: 10px;
    float: left;
}
a{
    text-decoration-line: none;
    color: black;
}
.content{
    height: 100px;
    width: 820px;
    float: left;
}
ul{
    height: 100px;
    width: 1000px;
    
    list-style: none;
}
.header li{
    height: 25px;
    width: 105px;
    /* border-right: 1px solid black; */
    font-size: 20px;
    text-align: center;
    float: left;
    margin-left: 30px;
    margin-top:  35px;
}
.user{
    height: 30px;
    width: 100px;
    float: left;
    margin: 0 auto;
    margin-top: 34px;
    background-color: rgba(199, 47, 47, 0.5);
    border-radius: 20px;
    text-align: center;
    display: flex;
    align-items: center;
    
}